Thank you everyone! All the input continues to be marvelous. It's
fascinating that the question is generating so much discussion.

Some off-list creative suggestions have included 'gutter curve,' and
'lay of the gutter.'

In addition to what English has to offer, I wonder what the French
language uses? I notice in the glossaries quite a few book terms have
been taken from the French, as their tradition of bookbinding is also
quite old. Are there any French or French speaking people on the list
who may care to weigh in?

I should say that I'm writing a novel, and am still trying on all the
terms thus far suggested. At the same time however, I do want the
term to have some currency (in whatever language) in the book arts
world. Thus I have come to you.

Thanks again!

Brian Herschler
Nanzan University
Nagoya, Japan

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